If you’re a U.S. citizen with a valid passport, you’re able to freely travel to more places in the world than most other countries’ citizens, and it’s probably a lot more than you realize. All you need are some vacation days and a plane ticket.

The visualization above gives a general overview of where and what you can do with a U.S. passport. As you can see, it’s not so much about where you can go without a visa, but where you can’t go without one. Most countries offer visa-free access, or simply grant you a visa upon arrival. Some countries, however, require that you apply for visas before you travel. Here they are:

Of course, it’s important to keep in mind that just because a country requires a visa doesn’t mean it’s necessarily difficult to get one. Many of the countries that require eVisas, for example—like Australia, Brazil, and India—make it fairly easy to get your visa online in a matter of minutes. Other countries require you to apply for visas through their U.S. embassy or consulate office, which may take a while to process, so give yourself plenty of time.

If you don’t see the country you want to visit on that list above, you’re all set to enter it freely with your passport. You’ll either have your passport stamped and your entry logged, or you’ll be issued a full-on visa upon arrival just for having a U.S. passport (which may require a small amount of paperwork). That said, it’s always best to do thorough research before you travel anywhere:

Check the U.S. State Department’s current travel advisories to make sure you’ll be safe while you travel. Even if an advisory isn’t issued for the country you’re visiting, you can search it in the database and find lots of helpful information for U.S. citizens abroad.

And of course, make sure your passport is current and won’t expire before the end of the visa period. For example, if your passport is going to expire in 40 days, don’t go to a country that offers you a free 90-day visa. They may not issue you the visa and let you in, or you’ll be stuck at the airport and unable to depart. Some countries even go by the “six-month rule,” which require your passport to be valid three to six months beyond your departure date. Don’t ruin your trip before it even begins.